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Jack and Jill ran up the hill

  1. Sep 23, 2009 #1
    1. The problem statement, all variables and given/known data
    Jack and Jill ran up the hill at 3.6 m/s. The horizontal component of Jill's velocity vector was 2.3 m/s.

    (a) What was the angle of the hill?


    (b) What was the vertical component of Jill's velocity?


    2. Relevant equations

    ?


    3. The attempt at a solution
    I don't know where to start
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 23, 2009 #2

    mgb_phys

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    Homework Helper

    Think of a triangle.
    Jill has moved horizontally at 2.3m/s so draw a horizontal line 2.3 units long
    she moves up the slope at 3.6m/s so draw the slope of the triangle 3.6 units long.

    Then all you need to find is the angle and the length of the third side.
    You can use trig for this, but you can get a good estimate from your drawing.
     
  4. Sep 23, 2009 #3
    thanks! that helped a lot!
     
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